Paper · 2008 · Pakistan Journal of Biological Sciences

Effects of Steckling Weight and Planting Density on Sugar Beet (Beta vulgaris L.) Monogerm Seed Yield and Qualitative Traits

Saeed Sadeghzadeh Hemayati; Daryoush Fatollah Taleghani; Shima Shahmoradi

10
claims
20
verbatim quotes
4
citations
1
research areas
✓
Open access

Abstract

In order to determine the effects of steckling weight and planting density on sugar beet monogerm (Cv. 9597) seed quantitative and qualitative characteristics, this experiment was carried out in Ardabil Agricultural Research Station-Iran (38 degrees 30'N and 48 degrees 30'E) during 2 years (2002-2003). In the study, steckling weight (main-plot) in three levels including 100, 100-200 and 200-300 g and planting density (sub-plot) in three levels including 40, 50 and 60 cm were used in a split-plot experiment based on the RCBD (Randomized Complete Blocks Design) with 5 replications. The measured characteristics were morphological and qualitative (velocity and uniformity of germination) characters, seed size distribution and monogerm seed percentage. According to the results of the experiment, the effect of planting density on the auxiliary branches No. and seed yield was significant at the probability levels of 1 and 5%, respectively. Seed yield increased by 43% as planting density was increased from 65 x 40 to 65 x 60 cm. The increase in steckling weight led to the increase in standard seed portion (with 3.5-4.5 mm in diameter), germinable standard seed yield (11%) and decrease in germination velocity and germination uniformity; and increase in planting density was accompanied by increase in > 4.5 mm seed percentage, velocity and uniformity of germination and decrease in germinable standard seed yield. Eventually, the highest seed yield (1208 kg ha(-1)) was obtained by using steckling weight of 200-300 g and planting density of 65 x 60 cm.

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Claims 10

Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Planting density significantly affected auxiliary branch number.

Treatment
planting densitye0
Outcome
auxiliary branches No.e0

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the effect of planting density on the auxiliary branches No. and seed yield was significant at the probability levels of 1 and 5%, respectively”

✓ located verbatim in the source · abstract, characters 801–944 · show in text ↑
t0

“Sugar Beet”

✓ located verbatim in the source · title, characters 52–62 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Planting density significantly affected seed yield.

Treatment
planting densitye0
Outcome
seed yielde0
Value
5%e0

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the effect of planting density on the auxiliary branches No. and seed yield was significant at the probability levels of 1 and 5%, respectively”

✓ located verbatim in the source · abstract, characters 801–944 · show in text ↑
t0

“Sugar Beet”

✓ located verbatim in the source · title, characters 52–62 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Seed yield rose 43% as spacing increased from 65 x 40 to 65 x 60 cm.

Treatment
65 x 60 cme0
Outcome
Seed yielde0
Direction
increasede0
Value
43%e0
Comparator
65 x 40e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Seed yield increased by 43% as planting density was increased from 65 x 40 to 65 x 60 cm”

✓ located verbatim in the source · abstract, characters 946–1034 · show in text ↑
t0

“Sugar Beet”

✓ located verbatim in the source · title, characters 52–62 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Higher steckling weight increased the standard seed portion.

Treatment
increase in steckling weighte0
Outcome
standard seed portione0
Direction
increasee0
Qualifier
3.5-4.5 mm in diametere0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The increase in steckling weight led to the increase in standard seed portion (with 3.5-4.5 mm in diameter)”

✓ located verbatim in the source · abstract, characters 1036–1143 · show in text ↑
t0

“Sugar Beet”

✓ located verbatim in the source · title, characters 52–62 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Higher steckling weight increased germinable standard seed yield by 11%.

Treatment
increase in steckling weighte0
Outcome
germinable standard seed yielde0
Direction
increasee0
Value
11%e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“increase in steckling weight led to the increase in standard seed portion (with 3.5-4.5 mm in diameter), germinable standard seed yield (11%)”

✓ located verbatim in the source · abstract, characters 1040–1181 · show in text ↑
t0

“Sugar Beet”

✓ located verbatim in the source · title, characters 52–62 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Higher steckling weight reduced germination velocity and uniformity.

Treatment
steckling weightt0
Outcome
germination velocity and germination uniformitye0
Direction
decreasee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“decrease in germination velocity and germination uniformity”

✓ located verbatim in the source · abstract, characters 1186–1245 · show in text ↑
t0

“Steckling Weight and Planting Density on Sugar Beet”

✓ located verbatim in the source · title, characters 11–62 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Higher planting density increased the proportion of seeds larger than 4.5 mm.

Treatment
planting densitye0
Outcome
> 4.5 mm seed percentagee0
Direction
increasee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“increase in planting density was accompanied by increase in > 4.5 mm seed percentage”

✓ located verbatim in the source · abstract, characters 1251–1335 · show in text ↑
t0

“Sugar Beet”

✓ located verbatim in the source · title, characters 52–62 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Higher planting density increased germination velocity and uniformity.

Treatment
planting densitye0
Outcome
velocity and uniformity of germinatione0
Direction
increasee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“increase in planting density was accompanied by increase in > 4.5 mm seed percentage, velocity and uniformity of germination”

✓ located verbatim in the source · abstract, characters 1251–1375 · show in text ↑
t0

“Sugar Beet”

✓ located verbatim in the source · title, characters 52–62 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Higher planting density decreased germinable standard seed yield.

Treatment
planting densitye0
Outcome
germinable standard seed yielde0
Direction
decreasee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“increase in planting density was accompanied by increase in > 4.5 mm seed percentage, velocity and uniformity of germination and decrease in germinable standard seed yield”

✓ located verbatim in the source · abstract, characters 1251–1422 · show in text ↑
t0

“Sugar Beet”

✓ located verbatim in the source · title, characters 52–62 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The highest seed yield was 1208 kg ha(-1) with 200-300 g stecklings at 65 x 60 cm spacing.

Treatment
steckling weight of 200-300 g and planting density of 65 x 60 cme0
Outcome
seed yielde0
Direction
higheste0
Value
1208 kg ha(-1)e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the highest seed yield (1208 kg ha(-1)) was obtained by using steckling weight of 200-300 g and planting density of 65 x 60 cm”

✓ located verbatim in the source · abstract, characters 1436–1562 · show in text ↑
t0

“Sugar Beet”

✓ located verbatim in the source · title, characters 52–62 · show in text ↑

density · yield · Beta vulgaris (beet)Positive and negative results

30 papers: 27 positive, 3 negative or no effect

26 papers in the same direction as this paper · 3 in the opposite direction

  1. no effect
  2. negative
  3. no effect

26 papers more in this group

See all 30 papers →

density · growth · Beta vulgaris (beet)Results agree

20 papers: 20 positive, 0 negative or no effect

19 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

16 papers more in this group

See all 20 papers →

Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.